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This article introduces the knowledge of "how to run PostgreSQL on Kubernetes". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Create a unified, flexible cloud native production deployment to deploy a personalized database as a service (DBaaS).

By running PostgreSQL databases on Kubernetes, you can create unified, flexible cloud native production deployment applications to deploy a personalized database-as-a-service tailored to your specific needs.

For Kubernetes, using Operator allows you to provide additional context to manage stateful applications. Operator is also helpful when using open source databases such as PostgreSQL to perform including configuration, extension, high availability, and user management.

Let's explore how to get PostgreSQL up and running on Kubernetes.

Install PostgreSQL Operator

The first step in using PostgreSQL with Kubernetes is to install an Operator. With the help of a quick start script for Crunchy for Linux systems, you can start and run open source Crunchy PostgreSQL Operator in any Kubernetes-based environment.

There are some necessary prerequisites for quick start scripts:

The Wget tool is installed. The kubectl tool is installed. A StorageClass has been defined in your Kubernetes. A user account with cluster privileges that can access Kubernetes to install Operator's RBAC rules. A namespace for PostgreSQL Operator. Executing this script will give you a default PostgreSQL Operator deployment, which assumes that you use dynamic storage and a StorageClass called standard. This script allows the user to override these default values with custom values.

You can download this quick launch script and set its permissions to executable with the following command:

Wgetchmod + x. / quickstart.sh

Then you run the quick start script:

. / examples/quickstart.sh

After the script prompts you for basic information about Kubernetes clusters, it will do the following: download the Operator configuration file and set this file to the default settings to deploy settings your file contains environment variables set your HOME/.bash_completion file to pgo bash_completion file during the execution of the Quick start script, you will be prompted to set RBAC rules in your Kubernetes cluster. At the other terminal, execute the command prompted by the Quick start command.

Once the script is executed, you will be prompted to set a port to forward to PostgreSQL Operator pod. On another terminal, perform this port forwarding operation; this will allow you to start executing commands on PostgreSQL Operator! Try entering the following command to create a cluster:

Pgo create cluster mynewcluster

You can enter the following command to test your cluster health:

Pgo test mynewcluster

Now you can manage your PostgreSQL database in Kubernetes! You can find very comprehensive commands in the official documentation, including expansion, high availability, backup, and so on.

That's all for "how to run PostgreSQL on Kubernetes". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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